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AS部分:

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package  
{ 
import flash.display.Sprite; 
  
import flash.events.Event; 
import flash.events.MouseEvent; 
import fl.controls.Button; 
  
import flash.net.FileReference; 
import flash.net.FileFilter; 
  
public class Main extends Sprite 
{ 
public var file:FileReference; 
public var btn:Button; 
public var arr:Array; 
public var imgfilter:FileFilter; 
public var swffilter:FileFilter; 
public var ureq:URLRequest; 
  
public function Main()  
{ 
file = new FileReference(); 
btn = new Button(); 
imgfilter = new FileFilter("Image", "*.png;*.jpg"); 
  
btn.label = "browser"; 
btn.emphasized = true; 
btn.width = 150; 
btn.move(100, 100); 
ureq.url = "http://localhost/test/img/upload.php"; 
  
  
btn.addEventListener(MouseEvent.MOUSE_DOWN, down); 
file.addEventListener(Event.COMPLETE, complete); 
file.addEventListener(Event.OPEN,open); 
file.addEventListener(Event.CANCEL, cancel);//点击取消按钮会广播这个事件 
file.addEventListener(Event.SELECT, select); 
  
addChild(btn); 
} 
  
  
public function down(e:MouseEvent):void { 
file.browse([imgfilter]);//browse的参数是以个FileFilter对象，限制文件选择的类型 
} 
public function complete(e:Event):void { 
trace("complete"+e); 
} 
public function open(e:Event):void { 
trace("open"); 
} 
public function cancel(e:Event):void { 
trace("cancel"); 
} 
public function select(e:Event):void { 
var tem = e.target; 
trace(tem.name + "," + tem.creationDate + "," + tem.size); 
file.upload(ureq);//选择结束后，开始上传 
} 
} 
  
}

PHP部分:

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<?php 
$uploaddir = './uploads/';//设置存储路径 
$filename = $_FILES['Filedata']['name'];//获得选择的文件 
$uploadfile = $uploaddir . $filename;//存储文件路径 
$uploadfile = iconv('utf-8', 'gb2312', $uploadfile);//设置文件格式 
move_uploaded_file($_FILES['Filedata']['tmp_name'], $uploadfile);//开始上传 
?>